<?php
// phpinfo();

// header("Content-Type:text/javascript;chart=utf-8");
// echo "let a = 123;"

// header("Content-Type:application/json;chart=utf-8");
// echo "{\"name\":\"tom\", \"age\":22}";
echo "<h2>h2</h2>";

// header("location:http://www.baidu.com");
// header("location:/day02/001.php");

// exit("退出");

// sleep(2);
echo "<h2>test2</h2>";

// require("./t21.php");

// require("./t2.php");
// require("./t2.php");

// include("./t21.php");

// require_once("./t2.php");
require_once("./t2.php");

echo $num;
echo "<hr>";


?>